** Seagate STX.O shares jump to a fresh record high on Tues, and up about 6% ahead of qtrly results after the bell, with investors focused on strong rev growth expectations and surging AI demand

** Co's stock has nearly quadrupled over the past 12 months as rush to build AI data centers creates heavy demand for hard drives and other storage devices

** Analysts expect STX to post an 18% rise in qtrly rev to $2.73 bln and adj EPS of $2.81, up from $2.03 a yr ago, per LSEG

** STX recently traded at 29x fwd earnings, well above its five-year avg of 17x, while 21 of 26 analysts rate the stock 'buy' or 'strong buy'

** A US appeals court earlier this month revived the co's antitrust claims against Japan's NHK Spring over alleged price-fixing of hard-drive components

(Reporting by Noel Randewich)

((noel.randewich@thomsonreuters.com))